Hose-coupling.



F. VLACH.

HOSE GOUPLING.

APPLICATION FILED AUG.12,1907.

938,095, Patented Oct. 26, 1909.

FRANK VLACH, F CHICAGO, ILLINOIS.

' HOSE-COUILING.

I Specification of Letters Patent.

Application filed August 12, 1907: Serial No. 388,112.

To all whom it may concern:

Be it known that I, FRANK VLAoH, a subject of the Emperor of Austria-Hungary,`

in hose couplings and more particularly to az hose coupling 1n which the gasket in the joint tends to hold the coupling in locked position.

The object of the invention is to provide a coupling in which the interlocking parts are rmly held together by pressure exerted on' the coupling ysections by the packing which closes the j ointltherebetween.

It is a further object of the invention to provide a very cheap and simple construction, whichA is easy to `operate and not liable to get out of re air with ordinary usage, and .which will aord a very tight joint for the hose.

The invention consists of the matters hereinafter described in the specification and more fully pointed out and defined in the appended claim.

In the drawings: Figure l is a side elevation partly in section, of a device'embodying my invention. Fig. 2 is an end elevation of the same. l

As shown in said drawings: 1 and 2 indicate respectively the connecting sleeves of the sections of the .coupling and by means of which` the sections are attached to the hose ends. The adjacent ends of Said sleeves are each provided with a peripheral flange, indicated by 3 and 3 respectively, which provide the meeting faces of the coupling. Each flange is provided in its outer face, or

that adjacent the other iange, with'a groove or channel 4-.l, concentric with the bore of the sleeve and each of which is oval in cross section, or br dader than deep, and that in the flange 3 opens lat its bottom into aninner groove or seat 5 which increases in width downwardly or inwardly, providing one packing ring 6 is engaged in the seat 5 by means of a rib 6 thereon which is complemental with and is forced intosaid seat. Said gasket is cylindrical in cross section and projects outwardly from the flange 3 into the groove 4 in the flange 3 when the coupling is connected, and is of sulicient size to normally hold said anges out of conratentec oet. V26, 1909. l

I member of a dovetail joint. A gasket or Y tact with each other as shown in 1. In-

asmuch as the grooves 4 and 4 are broader than deep the gasket is permitted to slightly Hatten under the pressure .caused thereon in connecting the sections of the coupling together. Each of said flanges is provided on its periphery with a plurality of longitudinally-directed hooks or knuckles, indicated respectively by 7 and 7 f Said knuckles as shown are formed integrally with the flanges and those on one flange face oppositely from those onrthe other and are adapted to interlock therewith.

The operation is as follows: When connecting the coupling the two sections are placed together with the gasket in the groove et of the liange 3. The sections are then forced toward each other, thereby compressing the gasket suiiciently to permit the Vends of the knuckles or hooks 7-7 to pass over each other and interlock when the sections are rotated in the directions indicated by the arrows in Fig. 1. The resiliency of the gasket acts to force the sections oppositely and therefore holds 'the knuckles interlocked 'until the sections are again Vforced together flange on one end thereof havingan annular n undercut groove in its face opposite from said sleeve, a gasket rigidly engaged in said groove and having a rounded outer face, a Asleeve 1n axial alinement with the aforesaid thereon and when orced into engagement to draw the anges into'close contact with each other.

In witness whereof, I have hereunto subscribed .my name in the presence of two witnesses.

Witnesses:

CARL HAERTING, JOSEPH SCHLENKER.

FRANK VLACH. 

